Primitives

The Primitives are a small musical group living in Mainframe. There are three members of the group; their name comes from the fact that each member is a simple shape coming from the early days of computers. The three members are a blue sphere, a green cube, and a red cone.

Primitives 2 — The Primitives forming an Icon

The Primitives auditioned to perform at Enzo Matrix's birthday party. They were dancing to music, slightly changing their shape and size. Dot Matrix and Emma See seemed impressed by their audition. At the end, the cube rotated to a diamond shape, the cone flattened to a triangle covering the top half of the diamond, and the sphere became a circle behind them, forming the Reboot icon. After seeing this, Dot realized where her own icon symbol came from. (Talent Night).

References[]

The song they play is reminiscent of Comanche by the Revels, released in 1961.
It is unclear if the Primitives is only the name of the group or if it is also the name of their format.